Re-install os885 on XO-1.5 error
quozl at laptop.org
Thu Jun 13 02:04:21 EDT 2013
Good to hear.
USB flash drives can be unreliable. There are so many things that can
On Thu, Jun 13, 2013 at 04:28:48PM +1100, David Leeming wrote:
> Thanks again James.
> The md5sum was OK so I reformatted the USB stick and tried again - and no
> error. I have done this so many times before on XO-1 but never seen this. So
> the first time I tried on XO 1.5 it happened. I must remember the old adage,
> if the car doesn't start maybe it has no petrol...
> -----Original Message-----
> From: quozl at us.netrek.org [mailto:quozl at us.netrek.org] On Behalf Of James
> Sent: Thursday, 13 June 2013 3:47 p.m.
> To: David Leeming
> Cc: 'OLPC Devel'
> Subject: Re: Re-install os885 on XO-1.5 error
> G'day David,
> The CPU temperature of 54 celcius is a bit on the high side. Please
> run the heat spreader test on this unit:
> ok test /switches
> If the heat spreader does not contact the CPU properly, the
> temperature can rise too much during installation. If the temperature
> is too high, the CPU can pause, or make mistakes.
> Significant gaps, blocks staying gray, are normal, and nothing to
> worry about. These blocks don't need to be written, so the .zd file
> does not write to them. This saves on downloads.
> The error "Wrong expanded data length" means that the file was not
> correct on the USB drive, or the USB drive could not be read. The
> task was aborted. Things you can try:
> * check the file using md5sum, see
> * try a different USB drive,
> * don't use a USB hub,
> * disconnect any other USB devices,
> * try a different port on the laptop,
> * upgrade the firmware; you are using Q3C07, but Q3C08 contains a fix
> for USB drives with embedded hubs, and Q3C13 has a fix for USB drives
> with unusual partitioning. Q3C15 is the latest version.
> That the XO starts up OK afterwards is not a valid test, since it
> would likely have the same build already installed.
> No logs are kept of firmware operations, so you won't find any
> evidence; you have to repeat the problem and gather data that way.
> James Cameron
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